// JavaScript Document
function getPosTop(i, j) {
    return 20 + i * 120;
}

function getPosLeft(i, j) {
    return 20 + j * 120;
}

function getNumberBackgroundColor(number) {
    switch (number) {
    case 2:
        return "#eee4da";
        break;
    case 4:
        return "#ede0c8";
        break;
    case 8:
        return "#f26179";
        break;
    case 16:
        return "#f59563";
        break;
    case 32:
        return "#f67c5f";
        break;
    case 64:
        return "#f65e36";
        break;
    case 128:
        return "#edcf72";
        break;
    case 256:
        return "#edcc61";
        break;
    case 512:
        return "#9c0";
        break;
    case 1024:
        return "#3365a5";
        break;
    case 2048:
        return "#09c";
        break;
    case 4096:
        return "#a6bc";
        break;
    case 8192:
        return "#93c";
        break;
    }
    return "black";
}

function getNumberColor(number) {
    if (number <= 4){
        return "#776e65";
    }
    return "white";
}


function nospace(board) {
    for ( var i = 0; i < 4; i++) 
        for ( var j = 0; j < 4; j++) 
            if (board[i][j] == 0){
                return false;
			}
    return true;
}


function canMoveLeft( board ){
    for(var i = 0;i<4;i++)
        for(var j = 0;j<4;j++)
            if( board[i][j] !=0 )
                if( board[i][j-1] == 0 || board[i][j-1] == board[i][j])
                    return true;
                    
    return false;
}
function noBlockHorizontal(row, col1, col2, board){
    for(var i = col1 + 1; i<col2; i++)
        if(board[row][i]!=0)
            return false;
    return true;
}
function nomove(board){
    if(canMoveLeft(board)|| canMoveRight(board)|| canMoveUp( board ))
        return false;
    return true;
}











